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/*
* Id: s3cmap.c,v 1.2 1999/11/02 06:16:29 keithp Exp $
*
* Copyright 1999 SuSE, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Keith Packard, SuSE, Inc.
*/
/* $XFree86: xc/programs/Xserver/hw/kdrive/savage/s3cmap.c,v 1.5 2000/08/09 17:52:41 keithp Exp $ */
#include "s3.h"
void
s3GetColors (ScreenPtr pScreen, int fb, int ndef, xColorItem *pdefs)
{
KdScreenPriv(pScreen);
s3CardInfo(pScreenPriv);
S3Vga *s3vga = &s3c->s3vga;
while (ndef--)
{
s3SetImm (s3vga, s3_dac_read_index, pdefs->pixel);
pdefs->red = s3GetImm (s3vga, s3_dac_data) << 8;
pdefs->green = s3GetImm (s3vga, s3_dac_data) << 8;
pdefs->blue = s3GetImm (s3vga, s3_dac_data) << 8;
pdefs++;
}
}
#ifndef S3_TRIO
#define Shift(v,d) ((d) < 0 ? ((v) >> (-d)) : ((v) << (d)))
void
s3SetTrueChromaKey (ScreenPtr pScreen, int pfb, xColorItem *pdef)
{
FbOverlayScrPrivPtr pScrPriv = fbOverlayGetScrPriv(pScreen);
KdScreenPriv(pScreen);
s3ScreenInfo(pScreenPriv);
int fb, ma;
CARD32 key;
int r, g, b;
for (ma = 0; s3s->fbmap[ma] >= 0; ma++)
{
fb = s3s->fbmap[ma];
if (fb != pfb && pScreenPriv->screen->fb[fb].redMask)
{
r = KdComputeCmapShift (pScreenPriv->screen->fb[fb].redMask);
g = KdComputeCmapShift (pScreenPriv->screen->fb[fb].greenMask);
b = KdComputeCmapShift (pScreenPriv->screen->fb[fb].blueMask);
key = ((Shift(pdef->red,r) & pScreenPriv->screen->fb[fb].redMask) |
(Shift(pdef->green,g) & pScreenPriv->screen->fb[fb].greenMask) |
(Shift(pdef->blue,b) & pScreenPriv->screen->fb[fb].blueMask));
if (pScrPriv->layer[fb].key != key)
{
pScrPriv->layer[fb].key = key;
(*pScrPriv->PaintKey) (&pScrPriv->layer[fb].u.run.pixmap->drawable,
&pScrPriv->layer[pfb].u.run.region,
pScrPriv->layer[fb].key, fb);
}
}
}
}
#endif
void
s3PutColors (ScreenPtr pScreen, int fb, int ndef, xColorItem *pdefs)
{
KdScreenPriv(pScreen);
s3CardInfo(pScreenPriv);
s3ScreenInfo(pScreenPriv);
S3Vga *s3vga = &s3c->s3vga;
xColorItem *chroma = 0;
CARD32 key;
#if 0
_s3WaitVRetrace (s3vga);
#else
S3Ptr s3 = s3c->s3;
_s3WaitVRetraceFast(s3);
#endif
#ifndef S3_TRIO
if (pScreenPriv->screen->fb[1].depth)
{
FbOverlayScrPrivPtr pScrPriv = fbOverlayGetScrPriv(pScreen);
key = pScrPriv->layer[fb].key;
}
#endif
else
key = ~0;
while (ndef--)
{
if (pdefs->pixel == key)
chroma = pdefs;
s3SetImm (s3vga, s3_dac_write_index, pdefs->pixel);
s3SetImm (s3vga, s3_dac_data, pdefs->red >> 8);
s3SetImm (s3vga, s3_dac_data, pdefs->green >> 8);
s3SetImm (s3vga, s3_dac_data, pdefs->blue >> 8);
pdefs++;
}
#ifndef S3_TRIO
if (chroma && !pScreenPriv->closed)
s3SetTrueChromaKey (pScreen, fb, chroma);
#endif
}
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